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प्रश्न
Tick the most appropriate answer.
Physical changes are
पर्याय
permanent
periodic
temporary
irreversible
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उत्तर
temporary
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संबंधित प्रश्न
Melting of solid (wax) is a physical change.
Fill in the blank.
Growing of a seedling into a plant is _______ change.
State whether the following is physical or chemical changes.
lightning —
Write true or false
Earthquake is a desirable change.
Classify the Following as a Physical Or a Chemical Change.
Making of a Sugar Solution
Differentiate between a physical change and a chemical change with reference to – Formation of products.
Stretching gold coin into a ring is a ______ change.
Match the following
| Sr. No. | A | B | C |
| 1. | Melting | Change of state from liquid to solid | Ticking of clock |
| 2. | Condensation | Change of state from liquid to gas | Formation of ice cube |
| 3. | Evaporation | Change of state from solid to liquid | Collecting flowers |
| 4. | Freezing | Change of state from gas to liquid | Ice cube to water |
| 5. | Periodic change | Occurs at irregular time intervals | Water to steam |
| 6. | Non-periodic change | Occurs at regular time intervals | Steam to water drops |
Classify the following changes as physical and chemical changes
A rough piece of wood is sanded and polished resulting in change in texture, Rusting of a iron nail, Painting the grill, Bending a paper clip, Pounding silver into thin plate, Rolling the chappathi dough into thin wire, Occurrence of day and night, eruption of volcano, burning of matchstick, dosa from the batter, blinking of eyelids, occurrence of a thunderstorm, rotation of the earth, formation of eclipses.
| Sr. No. | Physical changes | Chemical changes |
| 1. | ||
| 2. |
Iron pipes coated with zinc do not get rusted easily.
